SAN DIEGO, April 20 (UPI) -- A rattlesnake species in the Southwest is becoming more aggressive and becoming even more lethal, U.S. experts say.

WHITEHOUSE STATION, N.J., Oct. 22 (UPI) -- U.S. pharmaceutical giant Merck said Wednesday it would trim its workforce by 7,200 positions by the end of 2011.

SAN DIEGO, Sept. 5 (UPI) -- California utility regulators ordered an investigation into the risk of wires breaking on utility poles that hold large numbers of cables and power lines.

BRISBANE, Australia, April 23 (UPI) -- Australian medical scientists say they are using molecules from cone snail venom and African plants to develop an oral drug to treat chronic pain.

WHITEHOUSE STATION, N.Y., May 5 (UPI) -- U.S. pharmaceutical giant Merck & Co. Thursday said Raymond Gilmartin had resigned his position as chairman and chief executive officer.

ESTES PARK, Colo., March 23 (UPI) -- An Estes Park, Colo., town trustee has been recalled by voters because he refused to stand for recitation of the Pledge of Allegiance.